Customer Verification (KYC/KYB)

Overview

Customer verification is a critical compliance process that ensures secure and lawful financial transactions. Fern's Customer Verification API provides comprehensive Know Your Customer (KYC) and Know Your Business (KYB) verification capabilities for both individual and business customers.

This documentation provides detailed technical guidance for implementing customer verification workflows using Fern's API. Whether you're verifying individual customers or complex business entities with beneficial owners, these guides will help you build compliant verification systems.

Integration guides

Step-by-step implementation guides for building customer verification workflows:

• KYC integration - Complete guide for verifying individual customers

• KYB integration - Detailed guide for verifying business customers and beneficial owners

• Webhooks - Implement event-driven verification status updates

Concepts

Understand the core concepts and workflows behind customer verification:

• Customer statuses - Verification lifecycle and status transitions

• Verification workflow - End-to-end verification process overview

Reference

Technical reference documentation for customer verification:

• Glossary - Terminology and definitions

Related documentation

• For basic customer creation, see Create and verify customers

• For supported customer types and geographies, see Coverage

• For API reference, see Customers API